Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
Arroyo O. and Gutiérrez S. (2017)

A seismic optimization procedure for reinforced concrete framed buildings based on eigenfrequency optimization

Revista : Engineering Optimization
Volumen : 49
Número : 7
Páginas : 1166-1182
Tipo de publicación : ISI Ir a publicación


Several seismic optimization methods have been proposed to improve the performance of reinforced concrete framed (RCF) buildings; however, they have not been widely adopted among practising engineers because they require complex nonlinear models and are computationally expensive. This article presents a procedure to improve the seismic performance of RCF buildings based on eigenfrequency optimization, which is effective, simple to implement and efficient. The method is used to optimize a 10-storey regular building, and its effectiveness is demonstrated by nonlinear time history analyses, which show important reductions in storey drifts and lateral displacements compared to a non-optimized building. A second example for an irregular six-storey building demonstrates that the method provides benefits to a wide range of RCF structures and supports the applicability of the proposed method.